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Catalyst Semiconductor - (CAT24C03 / CAT24C05) 2-Kb and 4-Kb I2C Serial EEPROM

Numéro de référence CAT24C03
Description (CAT24C03 / CAT24C05) 2-Kb and 4-Kb I2C Serial EEPROM
Fabricant Catalyst Semiconductor 
Logo Catalyst Semiconductor 





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CAT24C03 fiche technique
CAT24C03/05
2-Kb and 4-Kb I2C Serial EEPROM with Partial Array Write Protection
FEATURES
Supports Standard and Fast I2C Protocol
1.8 V to 5.5 V Supply Voltage Range
16-Byte Page Write Buffer
Hardware Write Protection for upper half of
memory
Schmitt Triggers and Noise Suppression Filters
on I2C Bus Inputs (SCL and SDA).
Low power CMOS technology
1,000,000 program/erase cycles
100 year data retention
Industrial temperature range
RoHS-compliant 8-lead PDIP, SOIC, and TSSOP,
8-pad TDFN and 5-lead TSOT-23 packages.
For Ordering Information details, see page 17.
DEVICE DESCRIPTION
The CAT24C03/CAT24C05 is a 2-kb/4-kb CMOS Serial
EEPROM device organized internally as 16/32 pages
of 16 bytes each, for a total of 256x8/512x8 bits. These
devices support both Standard (100kHz) as well as Fast
(400kHz) I2C protocol.
Data is written by providing a starting address, then
loading 1 to 16 contiguous bytes into a Page Write
Buffer, and then writing all data to non-volatile memory
in one internal write cycle. Data is read by providing a
starting address and then shifting out data serially while
automatically incrementing the internal address count.
Write operations can be inhibited for upper half of memory
by taking the WP pin High.
External address pins make it possible to address
up to eight CAT24C03 or four CAT24C05 devices on the
same bus.
PIN CONFIGURATION
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FUNCTIONAL SYMBOL
PDIP (L)
SOIC (W)
TSSOP (Y)
TDFN (VP2)
CAT24C05 / 03
NC / A0
A1 / A1
A2 / A2
VSS
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
TSOT-23 (TD)
SCL 1
VSS 2
SDA 3
5 WP
4 VCC
For the location of Pin 1, please consult the corresponding package drawing.
PIN FUNCTIONS
A0, A1, A2
SDA
SCL
WP
VCC
VSS
NC
Device Address Inputs
Serial Data Input/Output
Serial Clock Input
Write Protect Input
Power Supply
Ground
No Connect
SCL
A2, A1, A0
WP
VCC
CAT24C03
CAT24C05
VSS
SDA
* Catalyst carries the I2C protocol under a license from the Philips Corporation.
© 2006 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1116, Rev. B

PagesPages 18
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